The techniques presented herein relate to automatic network address translation (NAT) discovery and traverse for edge devices in a software-defined network in a wide area network (SD-WAN). More specifically, the techniques presented herein relate to techniques for automatic, symmetric NAT discovery and traverse between SD-WAN edge devices that ensure new branches can become part of an SD-WAN overlay network without explicit user (e.g., customer/administrator) involvement. Accordingly, and advantageously, the techniques presented herein can dynamically provide NAT-T hub connectivity for symmetric devices that can be used for service insertion of NAT-T functions. These techniques may vastly simplify SD-WAN deployment in diverse deployments and, thus, may provide significant business value.
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Shen, Tony; Ponnuru, Laxmikantha Reddy; and Mishra, Ajay Kumar, "AUTOMATIC SYMMETRIC NETWORK ADDRESS TRANSLATION DISCOVERY AND TRAVERSE BETWEEN SOFTWARE-DEFINED WIDE AREA NETWORK EDGE DEVICES", Technical Disclosure Commons, (May 20, 2020)